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layout: Set high dpi scaling factor

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Set the scaling factor when the dpi is above the hidpi threshold.

https://bugzilla.gnome.org/show_bug.cgi?id=705410
This commit is contained in:
Adel Gadllah 2014-02-12 17:40:01 +01:00
parent a6fb49b1e2
commit 470889f1c3
1 changed files with 14 additions and 0 deletions
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14
js/ui/layout.js
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@ -31,6 +31,9 @@ const MESSAGE_TRAY_PRESSURE_TIMEOUT = 1000; // ms
const HOT_CORNER_PRESSURE_THRESHOLD = 100; // pixels
const HOT_CORNER_PRESSURE_TIMEOUT = 1000; // ms
// We scale up when the dpi is higher then this (same value used by gsd)
const HIGH_DPI_LIMIT = 192;
function isPopupMetaWindow(actor) {
switch(actor.meta_window.get_window_type()) {
case Meta.WindowType.DROPDOWN_MENU:
@ -484,8 +487,19 @@ const LayoutManager = new Lang.Class({
return false;
},
_updateScaling: function() {
let primary = this.monitors[this.primaryIndex];
let dpi_x = primary.width / (global.gdk_screen.get_monitor_width_mm(this.primaryIndex) / 25.4);
let dpi_y = primary.height / (global.gdk_screen.get_monitor_height_mm(this.primaryIndex) / 25.4);
if (dpi_x > HIGH_DPI_LIMIT && dpi_y > HIGH_DPI_LIMIT)
St.ThemeContext.get_for_stage(global.stage).scale_factor = 2;
else
St.ThemeContext.get_for_stage(global.stage).scale_factor = 1;
},
_monitorsChanged: function() {
this._updateMonitors();
this._updateScaling();
this._updateBoxes();
this._updateTrayBarrier();
this._updateHotCorners();